A male and a female hippo have sexual intercourse and if all goes well a baby hippo is born sometime later.
the hippo usually has its babies during baseball season. lol, weird, huh? the babies are usually grown by the world series!!!!.
Hippos are born under water, they can stay submerged for extended periods.
Every 2 years they have one baby. Gestation is about 240 days.
Up to 2 but that is very rare the normally only have 1.
3G Baby Monitor - CNET Loaded 12.03.2010
Cute Baby Hippo
Newborn Hippo Learns to Swim
Paul the Baby Hippo